Status reporting from multiple tray accessory
US5758249A · kind A · utility
21Cited by
21References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 9, 1997 |
| Grant date | May 26, 1998 |
| Priority date | — |
| Expiry date | May 9, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/00734
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Two stacked paper trays (43, 45) are connected electrically by cable (53) and are physically combined, as by bolts. The combined unit has a single microprocessor (49). The paper trays communicate status, such as paper size and paper amount to the microprocessor. The microprocessor reports upon interrogation from a control processor (61) of a printer (7) that it is a multiple tray unit and reports the status for each unit. This avoids the use of a microprocessor with each tray.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.